IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water resources and hydroinformatics : From local scale to regional, continental, and global scales: coupling of ecohydrology and biogeoche...
From local scale to regional, continental, and global scales: coupling of ecohydrology and biogeochemical cycle model in biosphere
Author : TADANOBU NAKAYAMA(1) & SHAMIL MAKSYUTOV(2)
Recent research shows inland water may play some role in continental carbon cycling though its contribution has remained uncertain due to a paucity of data (Battin et al., 2009). About scale similarity and discontinuity of ecohydrological process, it is important to identify spatial coupling of ecosystems including energy, materials, and organisms across their boundaries. So, it is powerful to re-evaluate the ecosystems as extension of the metabolic theory of ecology (Brown et al., 2004) by considering multi-scaled aspects in the same way as the river continuum concept (Vannote et al., 1980). The author has developed process-based National Integrated Catchment-based Eco-hydrology (NICE) model (Nakayama, 2008a-b, 2010, 2011a-b, 2012a-c, 2013; Nakayama and Fujita, 2010; Nakayama and Hashimoto, 2011; Nakayama and Shankman, 2013a-b; Nakayama and Watanabe, 2004, 2006, 2008a-b; Nakayama et al., 2006, 2007, 2010, 2012), which incorporates surface-groundwater interactions, includes up- and down-scaling processes between local- egional-global scales, and can simulate iteratively feedback between hydrologic-geomorphicecological processes. In this study, NICE was expanded from various catchments/basins (Changjiang, Yellow, and
Mekong Rivers, West Siberia, Tokyo metropolitan area, and Japanese wetland) to global scale to evaluate eco hydraulic and eco-hydrological processes and their impact on biogeochemical cycles in inland water. The model shows there is a great difference in hydrologic cycles including surface-groundwater interaction between them. NICE was further developed to incorporate various models of biogeochemical cycling in the biosphere, such as LPJWHyMe (Lund‐ Potsdam ‐Jena Wetland Hydrology and Methane) (Wania et al., 2010) for terrestrial ecosystems, and QUAL2Kw (Pelletier et al., 2006) and SWAT (Soil and Water Assessment Tool) (Neitsch et al., 2011) for water quality in aquatic ecosystems.
File Size : 169,964 bytes
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Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water resources and hydroinformatics
Date Published : 30/09/2015
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